Statistics Review

Which measure of center involves adding all the data points together and then dividing by the number of data points?

• Mean

• Median

• Mode

• Range

Which measure of center involves taking the largest data point and subtracting the smallest data point from it?

• Mean

• Median

• Mode

• Range

Which measure of center looks at the data set and points out the most repeated data point?

• Mean

• Median

• Mode

• Range

Which measure of center involves putting the data points in order from least to greatest and then finding the data point that is in the middle?

• Mean

• Median

• Mode

• Range

What measure of variation requires you to find the median then find the medians of the upper and lower halves of the data sets and subtract them?

• Interquartile Range

• Mean Absolute Deviation

• Mode

• Median

What measure of variation requires you to find the mean, find the distance between the mean and every data point, then find the mean of those new data points?

• Interquartile Range

• Mean Absolute Deviation

• Median

• Mode

Find the Median for this set of data.

Find the Interquartile Range (IQR) for this set of data.

Find the Mean Absolute Deviation (MAD) for this set of data.

Is this a statistical question:

What is the favorite shoe brand of 6th graders at PS 71?

• Yes

• No